GW Instek GSP-930 Programming Manual User Manual
Page 44

GSP-930 Programming Manual
42
Status Register
Structure
Each status register (excluding the status byte
register) is divided into a number of register
structures:
Condition register
Positive transition register
Negative transition register
Event Register
Event Enable Register
Condition
Registers
The condition registers report the state of the
GSP-930. Condition registers can only be read.
PTR Registers
The positive transistion registers are used to
filter for events that occur from a negative to a
positive transition.
NTR Registers
The negative transition registers are used to
filter for events that occur from a positive to
negative transistion.
Event Registers
The PTR/NTP registers dictate the type
transistion conditions that will set the
corresponding bits in the event registers. The
event registers can only be read. Reading an
event register will clear it.
Event Enable
Registers
The event enable registers determine which
events in the corresponding event registers will
set the summary bits in a higher-order register.